Productions under labels, short circuits: disinsect and store in organic at the farm.

The Nox big bags have been designed to be completely airtight and have a system of non-return valves, allowing for suction (of air) and injection (of nitrogen/carbon dioxide).

They can hold up to 1 ton of product and measure 91x91x160cm.

The bag consists of two independent layers. The outer layer ensures the strength and stability of the big bag, while the heat-sealable inner layer ensures that it is airtight. The big bags are equipped with four lifting points, a large filling opening and a bottom-welded emptying opening.

Nox big bags can be reused several times (safety factor 6:1), but if the inner layer is punctured, they lose their original purpose of hermetic preservation.

No, if you take certain precautions.

Nitrogen and carbon dioxide are naturally occurring gases in the air we breathe every day (78.08% and 0.04% respectively). They are also already massively used in the food industry for the preservation of food in small packaging (bags, trays, soft drinks, etc.).

However, too high a concentration of carbon dioxide in the air breathed in will cause unconsciousness within seconds and can be fatal. The packaging in big bag Nox must imperatively be carried out in ventilated areas.

Carbon dioxide should be handled in large, ventilated rooms. The packaged big bags must then be clearly marked.

To get you started with the Nox system we offer weekly equipment rental, renewable (in mainland France only).

You will receive a Nox rental box containing all the necessary packaging material.

Please note that in the event of non-return or damage to the equipment or part of the equipment, a non-return fee will be charged, corresponding to the list price of the equipment concerned in force at the date of the order.

A 10kg bottle of carbon dioxide can be used to pack between 5 and 10 Nox big bags. The quantity of gas to be injected depends on the type of product to be preserved and its granulometry.

Disinsectisation is optimal when the carbon dioxide level inside the big bag is maintained between 40% and 60% for at least 21 days.

Three empirical methods allow you to inject the right amount of gas:

• Weigh the gas cylinder before and after injection to determine the mass of gas injected.
• Time the injection time (at constant flow rate) to determine the volume of gas injected.
• Introduce a precise quantity of product to be preserved, then inject the gas until the big-bag is fully inflated.

For an accurate measurement of the carbon dioxide level, a CO2 analyser should be used, which can be connected directly to one of the valves of the Nox big bag.

Nox big bags can be reused several times. To prepare for reuse :

1. Open the discharge chute cleanly.
2. Blow out the inside of the big bag.
3. Thermoweld the discharge chute.

Measure the gas level regularly to make sure there are no leaks.